Nilfisk-Advance Advance SC901 ST-28D User manual

Advance Models:
56115530 (SC901 ST-28D)
56115531 (SC901 ST-34D)
56115532 (SC901 ST-32C)
SC901 ST
Instructions for use Instructions for Use
Original Instructions
Instrucciones de uso
Mode d’ emploi
3/2019 revised 4/2019 REV B
Form no. 56091217
A-English
B-Español
C-Français

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INSTRUCTIONS FOR USEA - ENGLISH
TABLE OF CONTENTS
Page
Introduction..............................................................................A-3
Parts and Service ....................................................................A-3
Nameplate ...............................................................................A-3
Unpacking the Machine...........................................................A-3
Cautions and Warnings ...........................................................A-4
Know Your Machine....................................................... A-6 – A-7
Control Panel...........................................................................A-8
Control Panel – EcoFlex™ ......................................................A-8
Preparing the Machine for Use
Batteries ...................................................................... A-9 – A-10
Installing the Brushes ................................................ A-11 – A-12
Filling the Solution Tank.........................................................A-13
Squeegee Installation............................................................A-13
Detergent System (EcoFlex™).................................. A-14 – A-15
Operating the Machine
Wet Scrubbing........................................................... A-16 – A-17
After Using the Machine ........................................................A-18
Maintenance Schedule..........................................................A-19
Servicing the Vacuum Motor..................................................A-19
Lubricating the Machine ........................................................A-19
Maintenance
Charging the Batteries (Wet).................................................A-20
Charging the Batteries (Gel)..................................................A-20
Servicing the Squeegee ........................................................A-21
Adjusting the Squeegee ........................................................A-21
Troubleshooting.....................................................................A-22
Technical Specifications ........................................................A-23
Material Composition.............................................................A-24

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ENGLISH - AINSTRUCTIONS FOR USE
INTRODUCTION
This manual will help you get the most from your Advance™ automatic scrubber/dryer. Read it thoroughly before operating the machine.
Note: Bold numbers in parentheses indicate an item illustrated on pages A-6 – A-8 unless otherwise noted.
This product is intended for commercial use only.
PARTS AND SERVICE
Repairs, when required, should be performed by your Authorized Advance Service Center, who employs factory trained service personnel, and
maintains an inventory of Advance original replacement parts and accessories.
Call Advance for repair parts or service. Please specify the Model and Serial Number when discussing your machine.
MODIFICATIONS
Modi¿cations and additions to the cleaning machine which affect capacity and safe operation shall not be performed by the customer or user
without prior written approval from Nil¿sk Inc. Unapproved modi¿cations will void the machine warranty and make the customer liable for any
resulting accidents.
NAMEPLATE
The Model Number (also known as Part Number) and Serial Number of your machine are shown on the Nameplate in the battery compartment.
This information is needed when ordering repair parts for the machine. Use the space below to note the Part Number and Serial Number of your
machine for future reference.
PART NO. ______________________________________
SERIAL NO. ____________________________________
UNPACKING THE MACHINE
When the machine is delivered, carefully inspect the shipping packaging and the machine for damage. If damage is evident, save the shipping
carton (if applicable) so that it can be inspected. Contact the Advance Customer Service Department immediately to ¿le a freight damage claim.
Refer to the unpacking instruction sheet included with the machine to remove the machine from the pallet.
REGULATORY
FCC:
This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may not cause
harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired
operation.
Users are not permitted to make changes or modify the device in any way. Changes or modi¿cations not expressly approved by Nil¿sk,
Inc. will void the user’s authority to operate the equipment.
IC:
This device complies with Industry Canada ICES-002. Operation is subject to the following two conditions: (1) This device may not
cause harmful interference and (2) This device must accept any interference received, including interference that may cause undesired
operation of the device.
revised 4/2019

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INSTRUCTIONS FOR USEA - ENGLISH
CAUTIONS AND WARNINGS
SYMBOLS
Advance uses the symbols below to signal potentially dangerous conditions. Read this information carefully and take the
necessary steps to protect personnel and property.
DANGER!
Is used to warn of immediate hazards that will cause severe personal injury or death.
WARNING!
Is used to call attention to a situation that could cause severe personal injury.
CAUTION!
Is used to call attention to a situation that could cause minor personal injury or damage to the machine or other property.
Read all instructions before using.
GENERAL SAFETY INSTRUCTIONS
Specific Cautions and Warnings are included to warn you of potential danger of machine damage or bodily harm.
This machine is for commercial use, for example in hotels, schools, hospitals, factories, shops and offices other than
normal residential housekeeping purposes.
WARNING!
•This machine should only be used by properly trained and authorized persons.
•This machine is not intended for use by persons (including children) with reduced physical, sensory or mental
capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning
use of the machine by a person responsible for their safety.
•Children should be supervised to ensure that they do not play with the machine.
•Close attention is necessary when used near children.
•While on ramps or inclines, avoid sudden stops. Avoid abrupt sharp turns. Use low speed down ramps.
•Keep sparks, flame and smoking materials away from batteries. Explosive gases are vented during normal operation.
•Charging the batteries produces highly explosive hydrogen gas. Charge batteries only in well-ventilated areas, away
from open flame. Do not smoke while charging the batteries.
•Remove all jewelry when working near electrical components.
•Turn the key switch off (O) and disconnect the batteries before servicing electrical components.
•Never work under a machine without safety blocks or stands to support the machine.
•Do not dispense flammable cleaning agents, operate the machine on or near these agents, or operate in areas where
flammable liquids exist.
•Do not clean this machine with a pressure washer.
•Only use the brushes provided with the appliance or those specified in the instruction manual. The use of other
brushes may impair safety.
•Observe the Gross Vehicle Weight, GVW, of the machine when loading, driving, lifting or supporting the machine.

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CAUTIONS AND WARNINGS - CONTINUED
CAUTION!
•This machine is not approved for use on public paths or roads.
•This machine is not suitable for picking up hazardous dust.
•Use care when using scarifier discs and grinding stones. Advance will not be held responsible for any damage to
floor surfaces caused by scarifiers or grinding stones.
•When operating this machine, ensure that third parties, particularly children, are not endangered.
•Before performing any service function, carefully read all instructions pertaining to that function.
•Do not leave the machine unattended without first turning the key switch off (O), removing the key and securing the
machine.
•Turn the key switch off (O) and remove the key, before changing the brushes, and before opening any access panels.
•Take precautions to prevent hair, jewelry, or loose clothing from becoming caught in moving parts.
•Use caution when moving this machine in below freezing temperature conditions. Any water in the solution, recovery
or detergent tanks or in the hose lines could freeze, causing damage to valves and fittings. Flush with windshield
washer fluid.
•The batteries must be removed from the machine before the machine is scrapped. The disposal of the batteries
should be safely done in accordance with your local environmental regulations.
•Do not use on surfaces having a gradient exceeding that marked on the machine.
•All doors and covers are to be positioned as indicated in the instruction manual before using the machine.
•Refer to the battery charger OEM product manual for additional specific battery charger warnings.
SAVE THESE INSTRUCTIONS

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INSTRUCTIONS FOR USEA - ENGLISH
KNOW YOUR MACHINE
As you read this manual, you will occasionally run across a bold number or letter in parentheses - example: (2). These numbers refer to an item
shown on these pages unless otherwise noted. Refer back to these pages whenever necessary to pinpoint the location of an item mentioned in
the text. NOTE: Refer to the service manual for detailed explanations of each item illustrated on the next 3 pages.
1 Solution Tank Fill
2 Operator Control Handle
3 Bottle Holder / Squeegee hanger location
4 Vacuum Motor Shutoff Float
5 Debris Tray
6 Recovery Tank Lid
7 Recovery Tank (Detergent Cartridge Access Cover)
7a Detergent Cartridge (EcoFlex models only)
7b Detergent Module (EcoFlex models only)
8 Scrub Deck (Disc models)
9 Brush Housings (include Bristle Skirt)
10 Scrub Deck Bumper Wheel
11 Drive Wheel
12 Squeegee Assembly
13 Solution Filter
14 Solution Shut-off Valve
15 Battery Pack Connector
16 Brush Motor Circuit Breakers (30 Amp)
17 Vacuum Fan Circuit Breaker (20 Amp)
18 Wheel Drive Circuit Breaker (30 Amp)
19 Key Switch Circuit Breaker (2.5 Amp)
1
23
4
5
6
7
8
9
10
11
12
7a
7b
18
19
13
14
15
17
16

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KNOW YOUR MACHINE
2 Operator Control Handle
20 Solution Manifold (Cylindrical Models Only)
21 Idler Assembly (Cylindrical Models Only)
22 Debris Hopper (Cylindrical Models Only)
23 Forward / Reverse Drive Paddle
24 Onboard Battery Charger (Not found on all models)
25 Solution Control
26 Speed Limit Control Knob
27 Battery Hour Gauge
28 Water proof Key Switch
29 Recovery Tank Drain Hose
30 Squeegee Raise / Lower Lever
31 Solution Drain Hose / Level Indicator
32 Scrub Deck Raise / Lower Lever
33 Squeegee Mount Thumb Nut
34 Recovery Hose
35 Squeegee Blade Tension Strap
36 Squeegee Blade Alignment Pins
37 Squeegee Blade Latch
37 36 35
29
34
33
30
31
32
23
23
28
26
25
27
22
21
20
33
24
24
2

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INSTRUCTIONS FOR USEA - ENGLISH
CONTROL PANEL
A Key Switch (Main Power)
B Speed Control Knob
C Forward / Reverse Drive Paddle
D Operator Control Handle
E Solution Control (ST Models)
F Battery / Hour Gauge
The non-resettable Hour Gauge displays the running total of hours accumulated on the scrub motors up to 99,999 hours.
The hour glass symbol flashes on/off to indicate time counting.
CONTROL PANEL – ECOFLEX
G Detergent Module (EcoFlex models only)
H Solution Flow Control Knob (EcoFlex models only)
J Detergent System Control Knob (EcoFlex models only)
K Burst of Power Switch (EcoFlex models only)
L Burst of Power Switch LED (EcoFlex models only)
K
G
HJ
L
B
A
F
E
C
D
C

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BATTERIES
If your machine shipped with batteries installed do the following:
 Check that the batteries are connected to the machine (15).
Turn ON the Key Switch (A) and check the Battery / Hour Gauge (F). Battery Charge capacity is indicated using a 10 segment LED bar
graph display from full (right LED segment lit) to empty (left LED segment lit). LED Flash Alert™ flashes the 2nd LED from the left as a
warning that the battery has discharged 70%.
At 80% discharge, LED Flash Alert™ alternately flashes the left 2 LEDs to indicate very low capacity is remaining. At this level the scrub
systems are disabled to protect the battery. The vacuum system will continue to operate to allow recovery of any solution remaining on floor.
 IMPORTANT!: BATTERIES SHOULD BE FULLY CHARGED BEFORE EACH USE. SEE THE “CHARGING THE BATTERIES”
SECTION.
 IMPORTANT!: IF YOUR MACHINE HAS AN ONBOARD BATTERY CHARGER REFER TO THE OEM PRODUCT MANUAL FOR
INSTRUCTIONS REGARDING SETTING THE CHARGER FOR BATTERY TYPE.
If your machine shipped without batteries installed do the following:
 Consult your Authorized Advance dealer for recommended batteries.
 Install the batteries by following the instructions below.
 DO NOT install three 12 volt batteries in your machine. This affects the stability of the machine.
 IMPORTANT!: IF YOUR MACHINE HAS AN ONBOARD BATTERY CHARGER REFER TO THE OEM PRODUCT MANUAL FOR
INSTRUCTIONS REGARDING SETTING THE CHARGER FOR BATTERY TYPE.
WARNING!
Use extreme caution when working with batteries. Sulfuric acid in batteries can cause severe injury if allowed to contact the skin
or eyes. Explosive hydrogen gas is vented from the batteries through openings in the battery caps. This gas can be ignited by
any electrical arc, spark or flame. Do not install any lead-acid battery in a sealed container or enclosure. Hydrogen gas from
overcharging must be allowed to escape.
When Servicing Batteries...
*Remove all jewelry
*Do not smoke
*Wear safety glasses, rubber gloves and a rubber apron
*Work in a well-ventilated area
*Do not allow tools to touch more than one battery terminal at a time
*ALWAYS disconnect the negative (ground) cable first when replacing batteries to prevent sparks.
*ALWAYS connect the negative cable last when installing batteries.
CAUTION!
Electrical components in this machine can be severely damaged if the batteries are not installed and connected properly. Advance, a
qualified electrician, or the battery manufacturer should install batteries.
When changing batteries or the charger, please contact your local authorized service center for correct battery, charger and machine
settings to prevent battery damage.

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INSTRUCTIONS FOR USEA - ENGLISH
BATTERIES (CONTINUED)
1 Remove the batteries from their shipping crate and carefully inspect them for cracks or other damage. If damage is evident, contact the
carrier that delivered them or the battery manufacturer to file a damage claim.
2 Turn the Master Key Switch (A) OFF and remove the key.
3 Tip the recovery tank to the side, locked position. Remove the battery cables from inside the battery compartment.
4 Your machine comes from the factory with enough battery cables to install six 6 volt batteries. Carefully lift the batteries into the battery
compartment and arrange them exactly as shown in Figure 1. Secure the batteries as close to the back of the machine as possible.
NOTE: Battery spacers (O) need to be installed between the bottom of the batteries and the short wall on the bottom of the tank to create
more space between the batteries and prevent the Deck Lever Arm (P) from hitting the batteries.
5 Install the battery cables as shown. Position the cables so the battery caps can be easily removed for battery service. To prevent
interference, route the cable (Q) over the top of the Deck Lever Arm (P) as shown in Figure 1.
IMPORTANT!: The protective caps supplied with the batteries need to be left on or re-used to completely cover the
portion of the battery terminals that are not being protected by the battery cable terminal cover boots supplied with the
battery cables. This also applies to the inline fuse holder boot.
6 Carefully tighten the nut in each battery terminal until the terminal will not turn. Do not over-tighten the terminals, or they will be very difficult
to remove for future service.
7 Coat the terminals with spray-on battery terminal coating (available at most auto parts stores).
8 Put one of the rubber terminal cover boots over each of the terminals and connect the Battery Pack Connector (15).
9 Make sure the Fuse Holder Boot (R) is covering the fuse holder, the cable end of the Battery Pack Connector (15), and as much of the battery
terminal as possible. Leave the protective caps supplied with the batteries in place or re-use to cover the terminal areas not protected by the
terminal cover boots.
FIGURE 1
310AH @ 20HR RATE
BATTERY SPACER
BATTERY SPACER
P
Q
15
O
R